The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Otus 28mm F1.4 and the Sigma 24-35mm F2 DG HSM A for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Zeiss Otus 28mm F1.4 is the longer of the two lenses at 137mm. The Sigma 24-35mm F2 DG HSM A with a length of 123mm, is 14mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 88mm.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods.
Filter Threads
The Zeiss Otus 28mm F1.4 has a filter size of 95mm whereas the Sigma 24-35mm F2 DG HSM A has a 82mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 95mm filters that we recommend you to consider for the Zeiss Otus 28mm F1.4:
And these are the 82mm filters that we recommend for the Sigma 24-35mm F2 DG HSM A:
Lens Mounts
Both the Zeiss Otus 28mm F1.4 and the Sigma 24-35mm F2 DG HSM A has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Zeiss Otus 28mm F1.4 is also available in Canon EF mount.
Sigma 24-35mm F2 DG HSM A is also available in Canon EF and Sigma SA mounts.
Focal Range
Zeiss Otus 28mm F1.4 is a prime lens with fixed focal lenght of 28mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42mm.
On the other hand, the Sigma 24-35mm F2 DG HSM A has a focal range of 24-35mm and 1.5X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 36 - 52.5mm.